Found in a documentation for radio amateurs from the 90s, this circuit is suitable for RF measurements in transmission systems. The potentiometer must be of a special type.
This full-wave precision circuit was obtained from a 90's Radio Electronics. The circuit must be...
The transistor used is one of the first power Darlingtons with a collector current of 3 A. The...
We found this circuit in Radio Electronics magazine from April 1960. It works for both NPN and PNP...